Abstract
Sorption of a large amount of heavy oil by an exfoliated graphite was found. The maximum sorption capacity of the exfoliated graphite reached more than 80 g/g for grade-A oil with a viscosity of 4 poise and 75 g/g for grade-C heavy oil with 350 poise. Sorption for grade-A oil was completed: within 1 min a characteristic brown color of the oil disappeared. High performance of the exfoliated graphite for sorption of heavy oil, particularly for the collection of heavy oil was expected.
